英语词汇“astronomical mean sun”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	astronomical mean sun
释义	DictionarySeemean sun astronomical mean sun astronomical mean sun An imaginary body, which is assumed to travel around equinoctial at a constant rate, completing one orbit in the same time the earth takes to complete one orbit around the ecliptic. Also known as the mean sun.
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